Product Reports Resources Pricing Login Book a demo
COMPANY PROFILE

StimScience

Explore full profile

StimScience Inc. specializes in integrated, non-invasive, and personalized brain stimulation for sleep, performance, health, and treatment products for consumers

Berkeley, United StatesFounded 2017Health Tech & Medtech
Valuation $50–100M Last recorded · 2025
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for StimScience and the history behind them.

About StimScience

StimScience, operating under the consumer brand Somnee, is a Berkeley-based company founded in 2017 that is focused on the consumer sleep technology market. The firm was established by a team of neuroscientists from the University of California, Berkeley, including Dr. Matthew Walker, Dr. Robert Knight, Dr. Rich Ivry, and Dr. Ram Gurumoorthy. This founding group possesses decades of experience in sleep research and non-invasive brain stimulation. Ram Gurumoorthy, the Chief Technology Officer, previously served as CTO at NeuroFocus, a neuromarketing company acquired by Nielsen, and has a background in medical technologies at GE. The company's leadership was later strengthened by CEO Tim Rosa, who was formerly the CMO at Fitbit and played a key role in its growth and eventual acquisition by Google.

StimScience operates on a direct-to-consumer business model, targeting individuals seeking to improve their sleep quality. The company's core product is the Somnee Smart Sleep Headband, a wearable device that utilizes closed-loop transcranial electrical stimulation (tES). This technology, which has been used safely in other neurological applications for decades, involves a 15-minute session before bed where the device's EEG+ sensors read the user's brainwave patterns. A proprietary algorithm then delivers personalized, low-intensity electrical stimulation (tACS) to gently guide the brain into a state more conducive to sleep. After the session, the headband is removed for the night. In-house studies with beta users indicated the device could halve the time it takes to fall asleep and reduce overnight movement by over a third.

The business generates revenue through the sale of the headband and a recurring subscription model. The initial purchase of the device is priced around $299-$399. The subscription is required for ongoing personalization of the stimulation models and includes a regular supply of replacement hydrogel electrode pads, which are necessary for the device to function and need to be replaced every few days. The accompanying mobile application provides users with data and insights, including a Sleep Readiness Score, brain mapping visualizations, and a sleep journal to track habits and progress. The company has secured significant seed funding, raising a total of $10 million in a round led by Khosla Ventures, with participation from investors like Marc Benioff's TIME Ventures and the ownership group of the Orlando Magic NBA team.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2017
Headquarters
Berkeley, United States
Employees
16
Open positions
None listed
Dealroom signal
72.1/100
Industry
Health
Sub-industry
Health Platform
Sector
Health Tech & Medtech, Hard Tech

Funding history

3 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SEED✓Equity / VC Jun 2025 $10M $40M MetaLab · Orlando Magic & Amway Center · Nelstone Ventures · LEAD ↗
SEEDEquity / VC Apr 2021 $6M $24M Khosla Ventures —
Showing the latest 2 of 3 recorded eventsBook a demo for the full funding history →

Growth signals

StimScience website traffic

Latest recorded traffic for StimScience is 46K monthly website visits, up 12.2% over the last three months. StimScience's team grew 6.7% over the past year.

Latest monthly visits46K 3-month web change+12.2% 1-year team growth+6.7%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

Company identity and context are open; selected comparison metrics preview what is available on the platform.

Showing 8 of the closest matchesCompare every metric →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

8 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed6 investors entered at this stage

  • MetaLab
  • Orlando Magic & Amway Center
  • Nelstone Ventures
  • LEAD
  • Time Ventures
  • Seaside Ventures

Series A1 investor entered at this stage

Other known investors1 additional known investor

  • Natural Bridge Fund
Team profiled 3 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
2 countries with
team presence
🇮🇳 India54.5%
🇺🇸 United States45.5%
2 countries shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about StimScience on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

See StimScience’s full profile on Dealroom

Request a free trial to see the complete deal history, financials, people graph and growth signals.

Takes under a minute. Already use Dealroom? Log in.